Black 12" 30-HZ Single Competition Ported Sub Box SPECIFICATIONS: -CUTOUT DIAMETER: 11 1/8" -AIR VOLUME: 2.70 FT^3 -TUNING FREQUENCY: 30-Hz (TUNING VERIFIED WITH SMD IM-SG+) -1 SLOT PORT (DIMENSIONS: H-12.5” W-2.75” L-34”) -WEIGHT: 81 LBS. -MOUNTING DEPTH: 20 1/2" -FRONT BAFFLE THICKNESS 1 3/8" DIMENSIONS: -HEIGHT: 14 1/4” -LENGTH: 25 1/4" -DEPTH: 22" CONSTRUCTION: -3/4" MDF WOOD -2" STAPLES -HIGH QUALITY WOOD GLUE + MAINLY SEALED WITH HIGH QUALITY SILICONE+ NOT ALL SUBS WILL FIT DUE TO THE CUTOUT DIAMETER AND MOUNTING DEPTH SO PLEASE CHECK THE DIMENSIONS TO MAKE SURE THIS BOX SUITS YOUR SUBS